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  <div class="section" id="function-objects">
<span id="id1"></span><h1>函数对象<a class="headerlink" href="#function-objects" title="永久链接至标题">¶</a></h1>
<p id="index-0">有一些特定于 Python 函数的函数。</p>
<dl class="type">
<dt id="c.PyFunctionObject">
<code class="descname">PyFunctionObject</code><a class="headerlink" href="#c.PyFunctionObject" title="永久链接至目标">¶</a></dt>
<dd><p>用于函数的 C 结构体。</p>
</dd></dl>

<dl class="var">
<dt id="c.PyFunction_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="descname">PyFunction_Type</code><a class="headerlink" href="#c.PyFunction_Type" title="永久链接至目标">¶</a></dt>
<dd><p id="index-1">这是一个 <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyTypeObject</span></code></a> 实例并表示 Python 函数类型。 它作为 <code class="docutils literal notranslate"><span class="pre">types.FunctionType</span></code> 向 Python 程序员公开。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_Check">
int <code class="descname">PyFunction_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_Check" title="永久链接至目标">¶</a></dt>
<dd><p>如果 <em>o</em> 是函数对象（具有类型 <a class="reference internal" href="#c.PyFunction_Type" title="PyFunction_Type"><code class="xref c c-data docutils literal notranslate"><span class="pre">PyFunction_Type</span></code></a> ），则返回 true 。 参数不能为 <em>NULL</em> 。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_New">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_New</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*code</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*globals</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_New" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>返回与代码对象 <em>code</em> 关联的新函数对象。 <em>globals</em> 必须是一个字典，该函数可以访问全局变量。</p>
<p>从代码对象中检索函数的 docstring 和 name 。 <em>__module__</em> 从 <em>globals</em> 中检索。 参数 defaults 、 annotations 和 closure 设置为*NULL* 。 <em>__qualname__</em> 设置为与函数名称相同的值。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_NewWithQualName">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_NewWithQualName</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*code</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*globals</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*qualname</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_NewWithQualName" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>如 <a class="reference internal" href="#c.PyFunction_New" title="PyFunction_New"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyFunction_New()</span></code></a> ，但也允许设置函数对象的 <code class="docutils literal notranslate"><span class="pre">__qualname__</span></code> 属性。 <em>qualname</em> 应该是 unicode 对象或 NULL ；如果为 NULL ，则 <code class="docutils literal notranslate"><span class="pre">__qualname__</span></code> 属性设置为与 <code class="docutils literal notranslate"><span class="pre">__name__</span></code> 属性相同的值。</p>
<div class="versionadded">
<p><span class="versionmodified">3.3 新版功能.</span></p>
</div>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetCode">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_GetCode</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetCode" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>返回与函数对象 <em>op</em> 关联的代码对象。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetGlobals">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_GetGlobals</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetGlobals" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>返回与函数对象*op*相关联的主目录</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetModule">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_GetModule</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetModule" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>返回函数对象 <em>op</em> 的 <em>__module__</em> 属性，通常为一个包含了模块名称的字符串，但可以通过 Python 代码设为返回其他任意对象。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetDefaults">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_GetDefaults</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetDefaults" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>返回函数对象 <em>op</em> 的参数缺省值 (argument default values) ，该返回值为一个参数元组或者 <em>NULL</em>。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_SetDefaults">
int <code class="descname">PyFunction_SetDefaults</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*defaults</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_SetDefaults" title="永久链接至目标">¶</a></dt>
<dd><p>为函数对象 <em>op</em> 设置参数缺省值。 <em>defaults</em> 必须为 <em>Py_None</em> 或一个元组。</p>
<p>失败时引发 <a class="reference internal" href="../library/exceptions.html#SystemError" title="SystemError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">SystemError</span></code></a> 异常并返回 <code class="docutils literal notranslate"><span class="pre">-1</span></code> 。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetClosure">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyFunction_GetClosure</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetClosure" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the closure associated with the function object <em>op</em>. This can be <em>NULL</em>
or a tuple of cell objects.</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_SetClosure">
int <code class="descname">PyFunction_SetClosure</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*closure</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_SetClosure" title="永久链接至目标">¶</a></dt>
<dd><p>Set the closure associated with the function object <em>op</em>. <em>closure</em> must be
<em>Py_None</em> or a tuple of cell objects.</p>
<p>失败时引发 <a class="reference internal" href="../library/exceptions.html#SystemError" title="SystemError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">SystemError</span></code></a> 异常并返回 <code class="docutils literal notranslate"><span class="pre">-1</span></code> 。</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_GetAnnotations">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a> *<code class="descname">PyFunction_GetAnnotations</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_GetAnnotations" title="永久链接至目标">¶</a></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the annotations of the function object <em>op</em>. This can be a
mutable dictionary or <em>NULL</em>.</p>
</dd></dl>

<dl class="function">
<dt id="c.PyFunction_SetAnnotations">
int <code class="descname">PyFunction_SetAnnotations</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*op</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em>&nbsp;*annotations</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyFunction_SetAnnotations" title="永久链接至目标">¶</a></dt>
<dd><p>Set the annotations for the function object <em>op</em>. <em>annotations</em>
must be a dictionary or <em>Py_None</em>.</p>
<p>失败时引发 <a class="reference internal" href="../library/exceptions.html#SystemError" title="SystemError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">SystemError</span></code></a> 异常并返回 <code class="docutils literal notranslate"><span class="pre">-1</span></code> 。</p>
</dd></dl>

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